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Copyright © 2011, Juniper Networks, Inc.
New Features in Junos OS Release 10.4 for M Series, MX Series, and T Series Routers
Fabric down signaling to neighboring routers offers the following benefits:
FPCs reboot when the control plane connection to the Routing Engine times out.
Extends a simple approach to reboot FPCs when the dataplane blacks out.
When the router transitions from a state where SIBs are online or spare to a state where
there are no SIBs are online, then all the FPCs in the system are rebooted. An ERRMSG
indicates if all fabric planes are down, and the FPCs will reboot if any fabric planes do
not come up in 2 minutes.
An ERRMSG indicates the reason for FPC reboot on fabric connectivity loss.
The chassisd daemon traces when an FPC comes online, but a PIC attach is not done
because no fabric plane is present.
A CLI warning that the FPCs will reboot is issued when the last fabric plane is taken
offline.
You will need to bring the SIBs online after determining why the SIBs were not online.
When the first SIB goes online, and link training with the FPCs completes, the interfaces
will be created.
Fabric down signaling to neighboring routers functionality is available by default, and
no user configuration is required to enable it.
No new CLI commands or alarms are introduced for this feature. Alarms are already
implemented for when the SIBs are not online.
[Network Interfaces, System Basics]
New enterprise-specific MIB to support digital optical monitoring (MX960, MX480,
MX240, and 10-Gigabit Ethernet LAN/WAN PIC with XFP on T640 and T1600
routers)—Junos OS Release 10.4 introduces
enterprise-specific MIB to extend MIB support for digital optical monitoring.
supports the SNMP Get request for statistics and SNMP Trap
JUNIPER-DOM-MIB
notifications for alarms.
is part of the
JUNIPER-DOM-MIB
The following MIB objects are supported by
monitoring:
jnxDomCurrentTable
jnxDomAlarmSet
jnxDomAlarmCleared
[SNMP MIBs and Traps Reference]
Transition of IPv4 traffic to IPv6 addresses using Dual Stack Lite (DS-Lite)—Adds
support for DS-Lite, a means for transitioning IPv4 traffic to IPv6 addresses. This
transition will become necessary as the supply of unique IPv4 addresses nears
exhaustion. New subscriber homes are allocated IPv6 addresses and IPv6-capable
equipment; DS-Lite provides a method for the private IPv4 addresses behind the IPv6
equipment to reach the IPv4 network. An IPv4 host communicates with a NAT endpoint
JUNIPER-DOM-MIB
hierarchy level.
JUNIPER-SMI MIB
JUNIPER-DOM-MIB
, a new
for digital optical
9
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